152897421 has 8 divisors (see below), whose sum is σ = 207709920. Its totient is φ = 100008272.

The previous prime is 152897419. The next prime is 152897441. The reversal of 152897421 is 124798251.

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 152897421 - 2¹ = 152897419 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 152897421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152897411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480651 + ... + 480968.

It is an arithmetic number, because the mean of its divisors is an integer number (25963740).

Almost surely, 2^152897421 is an apocalyptic number.

It is an amenable number.

152897421 is a deficient number, since it is larger than the sum of its proper divisors (54812499).

152897421 is an equidigital number, since it uses as much as digits as its factorization.

152897421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961675.

The product of its digits is 40320, while the sum is 39.

The square root of 152897421 is about 12365.1696712985. The cubic root of 152897421 is about 534.7285675846.

The spelling of 152897421 in words is "one hundred fifty-two million, eight hundred ninety-seven thousand, four hundred twenty-one".