153113531 has 4 divisors (see below), whose sum is σ = 154468632. Its totient is φ = 151758432.

The previous prime is 153113491. The next prime is 153113537. The reversal of 153113531 is 135311351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153113531 is a prime.

It is a super-2 number, since 2×153113531² = 46887506750575922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153113497 and 153113506.

It is not an unprimeable number, because it can be changed into a prime (153113537) 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 3 ways as a sum of consecutive naturals, for example, 677381 + ... + 677606.

It is an arithmetic number, because the mean of its divisors is an integer number (38617158).

Almost surely, 2^153113531 is an apocalyptic number.

153113531 is a deficient number, since it is larger than the sum of its proper divisors (1355101).

153113531 is a wasteful number, since it uses less digits than its factorization.

153113531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355100.

The product of its digits is 675, while the sum is 23.

The square root of 153113531 is about 12373.9052445055. The cubic root of 153113531 is about 534.9803830115.

Adding to 153113531 its reverse (135311351), we get a palindrome (288424882).

The spelling of 153113531 in words is "one hundred fifty-three million, one hundred thirteen thousand, five hundred thirty-one".