152601949 has 4 divisors (see below), whose sum is σ = 156726364. Its totient is φ = 148477536.

The previous prime is 152601919. The next prime is 152601961. The reversal of 152601949 is 949106251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949106251 = 1279 ⋅742069.

It can be written as a sum of positive squares in 2 ways, for example, as 130370724 + 22231225 = 11418^2 + 4715^2 .

It is a cyclic number.

It is not a de Polignac number, because 152601949 - 2⁷ = 152601821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 4124377 = 152601949 / (1 + 5 + 2 + 6 + 0 + 1 + 9 + 4 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152601919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2062152 + ... + 2062225.

It is an arithmetic number, because the mean of its divisors is an integer number (39181591).

Almost surely, 2^152601949 is an apocalyptic number.

It is an amenable number.

152601949 is a deficient number, since it is larger than the sum of its proper divisors (4124415).

152601949 is an equidigital number, since it uses as much as digits as its factorization.

152601949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124414.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 152601949 is about 12353.2161399370. The cubic root of 152601949 is about 534.3838937863.

The spelling of 152601949 in words is "one hundred fifty-two million, six hundred one thousand, nine hundred forty-nine".