145531325454 has 16 divisors (see below), whose sum is σ = 291071612160. Its totient is φ = 48508948280.

The previous prime is 145531325449. The next prime is 145531325539. The reversal of 145531325454 is 454523135541.

It is a super-2 number, since 2×145531325454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152184 + ... + 560555.

It is an arithmetic number, because the mean of its divisors is an integer number (18191975760).

Almost surely, 2^145531325454 is an apocalyptic number.

145531325454 is an abundant number, since it is smaller than the sum of its proper divisors (145540286706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145531325454 is a wasteful number, since it uses less digits than its factorization.

145531325454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746775.

The product of its digits is 720000, while the sum is 42.

The spelling of 145531325454 in words is "one hundred forty-five billion, five hundred thirty-one million, three hundred twenty-five thousand, four hundred fifty-four".