45152402 has 4 divisors (see below), whose sum is σ = 67728606. Its totient is φ = 22576200.

The previous prime is 45152389. The next prime is 45152407. The reversal of 45152402 is 20425154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20425154 = 2 ⋅10212577.

It can be written as a sum of positive squares in only one way, i.e., 44903401 + 249001 = 6701^2 + 499^2 .

It is not an unprimeable number, because it can be changed into a prime (45152407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11288099 + ... + 11288102.

Almost surely, 2^45152402 is an apocalyptic number.

45152402 is a deficient number, since it is larger than the sum of its proper divisors (22576204).

45152402 is a wasteful number, since it uses less digits than its factorization.

45152402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22576203.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45152402 is about 6719.5537054182. The cubic root of 45152402 is about 356.0904170036.

Adding to 45152402 its reverse (20425154), we get a palindrome (65577556).

It can be divided in two parts, 45152 and 402, that added together give a palindrome (45554).

The spelling of 45152402 in words is "forty-five million, one hundred fifty-two thousand, four hundred two".