1145400397538 has 8 divisors (see below), whose sum is σ = 1718108297388. Its totient is φ = 572697631744.

The previous prime is 1145400397451. The next prime is 1145400397573. The reversal of 1145400397538 is 8357930045411.

It can be written as a sum of positive squares in 2 ways, for example, as 1114804440649 + 30595956889 = 1055843^2 + 174917^2 .

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

It is a super-2 number, since 2×1145400397538² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666431 + ... + 1653762.

Almost surely, 2^{1145400397538} is an apocalyptic number.

1145400397538 is a deficient number, since it is larger than the sum of its proper divisors (572707899850).

1145400397538 is a wasteful number, since it uses less digits than its factorization.

1145400397538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567028.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 1145400397538 in words is "one trillion, one hundred forty-five billion, four hundred million, three hundred ninety-seven thousand, five hundred thirty-eight".