149587957 has 4 divisors (see below), whose sum is σ = 149875596. Its totient is φ = 149300320.

The previous prime is 149587939. The next prime is 149587979. The reversal of 149587957 is 759785941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22146436 + 127441521 = 4706^2 + 11289^2 .

It is a cyclic number.

It is not a de Polignac number, because 149587957 - 2¹⁹ = 149063669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149587898 and 149587907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149587987) 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, 143038 + ... + 144079.

It is an arithmetic number, because the mean of its divisors is an integer number (37468899).

Almost surely, 2^149587957 is an apocalyptic number.

It is an amenable number.

149587957 is a deficient number, since it is larger than the sum of its proper divisors (287639).

149587957 is an equidigital number, since it uses as much as digits as its factorization.

149587957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287638.

The product of its digits is 3175200, while the sum is 55.

The square root of 149587957 is about 12230.6155609601. The cubic root of 149587957 is about 530.8423261849.

It can be divided in two parts, 149587 and 957, that added together give a square (150544 = 388²).

The spelling of 149587957 in words is "one hundred forty-nine million, five hundred eighty-seven thousand, nine hundred fifty-seven".