153040381 has 4 divisors (see below), whose sum is σ = 164812732. Its totient is φ = 141268032.

The previous prime is 153040379. The next prime is 153040423. The reversal of 153040381 is 183040351.

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 104960025 + 48080356 = 10245^2 + 6934^2 .

It is a cyclic number.

It is not a de Polignac number, because 153040381 - 2¹ = 153040379 is a prime.

It is a super-2 number, since 2×153040381² = 46842716433250322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153040981) 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, 5886156 + ... + 5886181.

It is an arithmetic number, because the mean of its divisors is an integer number (41203183).

Almost surely, 2^153040381 is an apocalyptic number.

It is an amenable number.

153040381 is a deficient number, since it is larger than the sum of its proper divisors (11772351).

153040381 is a wasteful number, since it uses less digits than its factorization.

153040381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11772350.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 153040381 is about 12370.9490743435. The cubic root of 153040381 is about 534.8951738021.

The spelling of 153040381 in words is "one hundred fifty-three million, forty thousand, three hundred eighty-one".