1401545012 has 24 divisors (see below), whose sum is σ = 2817776640. Its totient is φ = 597515040.

The previous prime is 1401545009. The next prime is 1401545069. The reversal of 1401545012 is 2105451041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125687 + ... + 136382.

It is an arithmetic number, because the mean of its divisors is an integer number (117407360).

Almost surely, 2^1401545012 is an apocalyptic number.

It is an amenable number.

1401545012 is an abundant number, since it is smaller than the sum of its proper divisors (1416231628).

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

1401545012 is a wasteful number, since it uses less digits than its factorization.

1401545012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262271 (or 262269 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1401545012 is about 37437.2142660215. The cubic root of 1401545012 is about 1119.1003117063.

Adding to 1401545012 its reverse (2105451041), we get a palindrome (3506996053).

The spelling of 1401545012 in words is "one billion, four hundred one million, five hundred forty-five thousand, twelve".