1258165038 has 32 divisors (see below), whose sum is σ = 2711469600. Its totient is φ = 386902656.

The previous prime is 1258165031. The next prime is 1258165049. The reversal of 1258165038 is 8305618521.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1258164987 and 1258165005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258165031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173428 + ... + 180536.

It is an arithmetic number, because the mean of its divisors is an integer number (84733425).

Almost surely, 2^1258165038 is an apocalyptic number.

1258165038 is an abundant number, since it is smaller than the sum of its proper divisors (1453304562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1258165038 is a wasteful number, since it uses less digits than its factorization.

1258165038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9396.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 1258165038 is about 35470.6221823074. The cubic root of 1258165038 is about 1079.5577287180.

The spelling of 1258165038 in words is "one billion, two hundred fifty-eight million, one hundred sixty-five thousand, thirty-eight".