402135545 has 16 divisors (see below), whose sum is σ = 553548288. Its totient is φ = 274726080.

The previous prime is 402135533. The next prime is 402135571. The reversal of 402135545 is 545531204.

It is not a de Polignac number, because 402135545 - 2¹² = 402131449 is a prime.

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, 11714 + ... + 30683.

It is an arithmetic number, because the mean of its divisors is an integer number (34596768).

Almost surely, 2^402135545 is an apocalyptic number.

It is an amenable number.

402135545 is a deficient number, since it is larger than the sum of its proper divisors (151412743).

402135545 is a wasteful number, since it uses less digits than its factorization.

402135545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42680.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 402135545 is about 20053.3175559557. The cubic root of 402135545 is about 738.1152089633.

Adding to 402135545 its reverse (545531204), we get a palindrome (947666749).

The spelling of 402135545 in words is "four hundred two million, one hundred thirty-five thousand, five hundred forty-five".