152420501 has 8 divisors (see below), whose sum is σ = 156945624. Its totient is φ = 147916800.

The previous prime is 152420497. The next prime is 152420519. The reversal of 152420501 is 105024251.

It can be written as a sum of positive squares in 4 ways, for example, as 81018001 + 71402500 = 9001^2 + 8450^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152420501 - 2² = 152420497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152420531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9701 + ... + 19973.

It is an arithmetic number, because the mean of its divisors is an integer number (19618203).

Almost surely, 2^152420501 is an apocalyptic number.

It is an amenable number.

152420501 is a deficient number, since it is larger than the sum of its proper divisors (4525123).

152420501 is a wasteful number, since it uses less digits than its factorization.

152420501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 152420501 is about 12345.8697951987. The cubic root of 152420501 is about 534.1720106368.

Adding to 152420501 its reverse (105024251), we get a palindrome (257444752).

The spelling of 152420501 in words is "one hundred fifty-two million, four hundred twenty thousand, five hundred one".