1400135154 has 16 divisors (see below), whose sum is σ = 3054840480. Its totient is φ = 424283360.

The previous prime is 1400135141. The next prime is 1400135179. The reversal of 1400135154 is 4515310041.

It is a happy 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, 10607019 + ... + 10607150.

It is an arithmetic number, because the mean of its divisors is an integer number (190927530).

Almost surely, 2^1400135154 is an apocalyptic number.

1400135154 is an abundant number, since it is smaller than the sum of its proper divisors (1654705326).

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

1400135154 is a wasteful number, since it uses less digits than its factorization.

1400135154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214185.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1400135154 is about 37418.3798954471. The cubic root of 1400135154 is about 1118.7249398005.

Adding to 1400135154 its reverse (4515310041), we get a palindrome (5915445195).

The spelling of 1400135154 in words is "one billion, four hundred million, one hundred thirty-five thousand, one hundred fifty-four".