152502021 has 40 divisors (see below), whose sum is σ = 263032704. Its totient is φ = 86248800.

The previous prime is 152501977. The next prime is 152502061. The reversal of 152502021 is 120205251.

It is not a de Polignac number, because 152502021 - 2⁷ = 152501893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 152501985 and 152502003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152502061) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 55936 + ... + 58598.

Almost surely, 2^152502021 is an apocalyptic number.

It is an amenable number.

152502021 is a deficient number, since it is larger than the sum of its proper divisors (110530683).

152502021 is a wasteful number, since it uses less digits than its factorization.

152502021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783 (or 2774 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 152502021 is about 12349.1708628555. The cubic root of 152502021 is about 534.2672251718.

Adding to 152502021 its reverse (120205251), we get a palindrome (272707272).

It can be divided in two parts, 15250 and 2021, that added together give a palindrome (17271).

The spelling of 152502021 in words is "one hundred fifty-two million, five hundred two thousand, twenty-one".