1251400214133 has 64 divisors (see below), whose sum is σ = 1967216394240. Its totient is φ = 784829736000.

The previous prime is 1251400214039. The next prime is 1251400214153. The reversal of 1251400214133 is 3314120041521.

1251400214133 is a `hidden beast` number, since 1 + 2 + 514 + 0 + 0 + 2 + 14 + 133 = 666.

It is not a de Polignac number, because 1251400214133 - 2¹⁷ = 1251400083061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1251400214097 and 1251400214106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251400214153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35627766 + ... + 35662872.

It is an arithmetic number, because the mean of its divisors is an integer number (30737756160).

Almost surely, 2^{1251400214133} is an apocalyptic number.

It is an amenable number.

1251400214133 is a deficient number, since it is larger than the sum of its proper divisors (715816180107).

1251400214133 is a wasteful number, since it uses less digits than its factorization.

1251400214133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36335 (or 36329 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1251400214133 its reverse (3314120041521), we get a palindrome (4565520255654).

The spelling of 1251400214133 in words is "one trillion, two hundred fifty-one billion, four hundred million, two hundred fourteen thousand, one hundred thirty-three".