245531137406 has 16 divisors (see below), whose sum is σ = 369325050864. Its totient is φ = 122422860864.

The previous prime is 245531137373. The next prime is 245531137409. The reversal of 245531137406 is 604731135542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245531137409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12125066 + ... + 12145298.

It is an arithmetic number, because the mean of its divisors is an integer number (23082815679).

Almost surely, 2^245531137406 is an apocalyptic number.

245531137406 is a deficient number, since it is larger than the sum of its proper divisors (123793913458).

245531137406 is a wasteful number, since it uses less digits than its factorization.

245531137406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36875.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 245531137406 in words is "two hundred forty-five billion, five hundred thirty-one million, one hundred thirty-seven thousand, four hundred six".