45129501 has 8 divisors (see below), whose sum is σ = 66858560. Its totient is φ = 30086316.

The previous prime is 45129463. The next prime is 45129523. The reversal of 45129501 is 10592154.

It is not a de Polignac number, because 45129501 - 2²¹ = 43032349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1671463 = 45129501 / (4 + 5 + 1 + 2 + 9 + 5 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45129551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835705 + ... + 835758.

It is an arithmetic number, because the mean of its divisors is an integer number (8357320).

Almost surely, 2^45129501 is an apocalyptic number.

It is an amenable number.

45129501 is a deficient number, since it is larger than the sum of its proper divisors (21729059).

45129501 is a wasteful number, since it uses less digits than its factorization.

45129501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671472 (or 1671466 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 45129501 is about 6717.8494326682. The cubic root of 45129501 is about 356.0302045870.

The spelling of 45129501 in words is "forty-five million, one hundred twenty-nine thousand, five hundred one".