499974145 has 16 divisors (see below), whose sum is σ = 655450560. Its totient is φ = 363096000.

The previous prime is 499974121. The next prime is 499974149. The reversal of 499974145 is 541479994.

It is not a de Polignac number, because 499974145 - 2²¹ = 497876993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499974092 and 499974101.

It is not an unprimeable number, because it can be changed into a prime (499974149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34495 + ... + 46795.

It is an arithmetic number, because the mean of its divisors is an integer number (40965660).

It is a Proth number, since it is equal to 7629 ⋅ 2¹⁶ + 1 and 7629 < 2¹⁶.

Almost surely, 2^499974145 is an apocalyptic number.

It is an amenable number.

499974145 is a deficient number, since it is larger than the sum of its proper divisors (155476415).

499974145 is a wasteful number, since it uses less digits than its factorization.

499974145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13056.

The product of its digits is 1632960, while the sum is 52.

The square root of 499974145 is about 22360.1016321483. The cubic root of 499974145 is about 793.6868449969.

The spelling of 499974145 in words is "four hundred ninety-nine million, nine hundred seventy-four thousand, one hundred forty-five".