45919487 has 4 divisors (see below), whose sum is σ = 45949176. Its totient is φ = 45889800.

The previous prime is 45919483. The next prime is 45919493. The reversal of 45919487 is 78491954.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78491954 = 2 ⋅39245977.

It is a cyclic number.

It is not a de Polignac number, because 45919487 - 2² = 45919483 is a prime.

It is a super-3 number, since 3×45919487³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45919483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12389 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (11487294).

Almost surely, 2^45919487 is an apocalyptic number.

45919487 is a deficient number, since it is larger than the sum of its proper divisors (29689).

45919487 is a wasteful number, since it uses less digits than its factorization.

45919487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29688.

The product of its digits is 362880, while the sum is 47.

The square root of 45919487 is about 6776.3918865426. The cubic root of 45919487 is about 358.0956201412.

The spelling of 45919487 in words is "forty-five million, nine hundred nineteen thousand, four hundred eighty-seven".