145254410215531 has 2 divisors, whose sum is σ = 145254410215532. Its totient is φ = 145254410215530.

The previous prime is 145254410215459. The next prime is 145254410215549. The reversal of 145254410215531 is 135512014452541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145254410215531 - 2³⁵ = 145220050477163 is a prime.

It is a super-2 number, since 2×145254410215531² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145254410215231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72627205107765 + 72627205107766.

It is an arithmetic number, because the mean of its divisors is an integer number (72627205107766).

Almost surely, 2^{145254410215531} is an apocalyptic number.

145254410215531 is a deficient number, since it is larger than the sum of its proper divisors (1).

145254410215531 is an equidigital number, since it uses as much as digits as its factorization.

145254410215531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480000, while the sum is 43.

The spelling of 145254410215531 in words is "one hundred forty-five trillion, two hundred fifty-four billion, four hundred ten million, two hundred fifteen thousand, five hundred thirty-one".