1402531145 has 16 divisors (see below), whose sum is σ = 1765435392. Its totient is φ = 1067605440.

The previous prime is 1402531133. The next prime is 1402531159. The reversal of 1402531145 is 5411352041.

It is not a de Polignac number, because 1402531145 - 2¹⁴ = 1402514761 is a prime.

It is a super-2 number, since 2×1402531145² = 3934187225390022050, which contains 22 as substring.

It is a Duffinian number.

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, 9962 + ... + 53891.

It is an arithmetic number, because the mean of its divisors is an integer number (110339712).

Almost surely, 2^1402531145 is an apocalyptic number.

It is an amenable number.

1402531145 is a deficient number, since it is larger than the sum of its proper divisors (362904247).

1402531145 is a wasteful number, since it uses less digits than its factorization.

1402531145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64072.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1402531145 is about 37450.3824413049. The cubic root of 1402531145 is about 1119.3627180771.

Adding to 1402531145 its reverse (5411352041), we get a palindrome (6813883186).

The spelling of 1402531145 in words is "one billion, four hundred two million, five hundred thirty-one thousand, one hundred forty-five".