1400121054 has 48 divisors (see below), whose sum is σ = 3290414400. Its totient is φ = 428536320.

The previous prime is 1400121049. The next prime is 1400121083. The reversal of 1400121054 is 4501210041.

1400121054 is a `hidden beast` number, since 1 + 400 + 1 + 210 + 54 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43254 + ... + 68345.

It is an arithmetic number, because the mean of its divisors is an integer number (68550300).

Almost surely, 2^1400121054 is an apocalyptic number.

1400121054 is an abundant number, since it is smaller than the sum of its proper divisors (1890293346).

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

1400121054 is a wasteful number, since it uses less digits than its factorization.

1400121054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111665 (or 111662 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1400121054 is about 37418.1914848914. The cubic root of 1400121054 is about 1118.7211844310.

Adding to 1400121054 its reverse (4501210041), we get a palindrome (5901331095).

The spelling of 1400121054 in words is "one billion, four hundred million, one hundred twenty-one thousand, fifty-four".