145401275554 has 4 divisors (see below), whose sum is σ = 218101913334. Its totient is φ = 72700637776.

The previous prime is 145401275479. The next prime is 145401275597. The reversal of 145401275554 is 455572104541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 145295905329 + 105370225 = 381177^2 + 10265^2 .

It is a super-2 number, since 2×145401275554² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145401275554.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36350318887 + ... + 36350318890.

Almost surely, 2^145401275554 is an apocalyptic number.

145401275554 is a deficient number, since it is larger than the sum of its proper divisors (72700637780).

145401275554 is an equidigital number, since it uses as much as digits as its factorization.

145401275554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72700637779.

The product of its (nonzero) digits is 560000, while the sum is 43.

The spelling of 145401275554 in words is "one hundred forty-five billion, four hundred one million, two hundred seventy-five thousand, five hundred fifty-four".