5420402145 has 40 divisors (see below), whose sum is σ = 10288148904. Its totient is φ = 2720825856.

The previous prime is 5420402107. The next prime is 5420402147. The reversal of 5420402145 is 5412040245.

It can be written as a sum of positive squares in 4 ways, for example, as 945193536 + 4475208609 = 30744^2 + 66897^2 .

It is not a de Polignac number, because 5420402145 - 2⁷ = 5420402017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5420402147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 386754 + ... + 400523.

Almost surely, 2^5420402145 is an apocalyptic number.

It is an amenable number.

5420402145 is a deficient number, since it is larger than the sum of its proper divisors (4867746759).

5420402145 is a wasteful number, since it uses less digits than its factorization.

5420402145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787311 (or 787302 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 5420402145 is about 73623.3804236127. The cubic root of 5420402145 is about 1756.6173562839.

The spelling of 5420402145 in words is "five billion, four hundred twenty million, four hundred two thousand, one hundred forty-five".