154133400431240 has 64 divisors (see below), whose sum is σ = 347702083887600. Its totient is φ = 61493026051072.

The previous prime is 154133400431167. The next prime is 154133400431287. The reversal of 154133400431240 is 42134004331451.

It can be written as a sum of positive squares in 8 ways, for example, as 65918063572036 + 88215336859204 = 8118994^2 + 9392302^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 154133400431240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 596332274 + ... + 596590686.

Almost surely, 2^{154133400431240} is an apocalyptic number.

154133400431240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154133400431240 is an abundant number, since it is smaller than the sum of its proper divisors (193568683456360).

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

154133400431240 is a wasteful number, since it uses less digits than its factorization.

154133400431240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297146 (or 297142 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 154133400431240 its reverse (42134004331451), we get a palindrome (196267404762691).

The spelling of 154133400431240 in words is "one hundred fifty-four trillion, one hundred thirty-three billion, four hundred million, four hundred thirty-one thousand, two hundred forty".