145537175461 has 2 divisors, whose sum is σ = 145537175462. Its totient is φ = 145537175460.

The previous prime is 145537175431. The next prime is 145537175467. The reversal of 145537175461 is 164571735541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134846856225 + 10690319236 = 367215^2 + 103394^2 .

It is a cyclic number.

It is not a de Polignac number, because 145537175461 - 2³⁵ = 111177437093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145537175467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72768587730 + 72768587731.

It is an arithmetic number, because the mean of its divisors is an integer number (72768587731).

Almost surely, 2^145537175461 is an apocalyptic number.

It is an amenable number.

145537175461 is a deficient number, since it is larger than the sum of its proper divisors (1).

145537175461 is an equidigital number, since it uses as much as digits as its factorization.

145537175461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764000, while the sum is 49.

The spelling of 145537175461 in words is "one hundred forty-five billion, five hundred thirty-seven million, one hundred seventy-five thousand, four hundred sixty-one".