152403381 has 24 divisors (see below), whose sum is σ = 245252280. Its totient is φ = 90550656.

The previous prime is 152403367. The next prime is 152403413. The reversal of 152403381 is 183304251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4356 + 152399025 = 66^2 + 12345^2 .

It is not a de Polignac number, because 152403381 - 2¹⁵ = 152370613 is a prime.

It is a super-2 number, since 2×152403381² = 46453581080462322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152403331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19066 + ... + 25851.

It is an arithmetic number, because the mean of its divisors is an integer number (10218845).

Almost surely, 2^152403381 is an apocalyptic number.

It is an amenable number.

152403381 is a deficient number, since it is larger than the sum of its proper divisors (92848899).

152403381 is a wasteful number, since it uses less digits than its factorization.

152403381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44965 (or 44962 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 152403381 is about 12345.1764264428. The cubic root of 152403381 is about 534.1520103369.

The spelling of 152403381 in words is "one hundred fifty-two million, four hundred three thousand, three hundred eighty-one".