145461660031 has 8 divisors (see below), whose sum is σ = 146090133504. Its totient is φ = 144834482520.

The previous prime is 145461660013. The next prime is 145461660053. The reversal of 145461660031 is 130066164541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145461660031 is a prime.

It is a super-2 number, since 2×145461660031² (a number of 23 digits) 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 (145461660061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98685 + ... + 548326.

It is an arithmetic number, because the mean of its divisors is an integer number (18261266688).

Almost surely, 2^145461660031 is an apocalyptic number.

145461660031 is a deficient number, since it is larger than the sum of its proper divisors (628473473).

145461660031 is an equidigital number, since it uses as much as digits as its factorization.

145461660031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647981.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 145461660031 in words is "one hundred forty-five billion, four hundred sixty-one million, six hundred sixty thousand, thirty-one".