1258153815381 has 16 divisors (see below), whose sum is σ = 1682084419584. Its totient is φ = 836496644544.

The previous prime is 1258153815341. The next prime is 1258153815403. The reversal of 1258153815381 is 1835183518521.

It is a happy number.

It is not a de Polignac number, because 1258153815381 - 2¹¹ = 1258153813333 is a prime.

It is a super-2 number, since 2×1258153815381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258153815341) 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, 12954855 + ... + 13051611.

It is an arithmetic number, because the mean of its divisors is an integer number (105130276224).

Almost surely, 2^{1258153815381} is an apocalyptic number.

It is an amenable number.

1258153815381 is a deficient number, since it is larger than the sum of its proper divisors (423930604203).

1258153815381 is a wasteful number, since it uses less digits than its factorization.

1258153815381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108460.

The product of its digits is 1152000, while the sum is 51.

The spelling of 1258153815381 in words is "one trillion, two hundred fifty-eight billion, one hundred fifty-three million, eight hundred fifteen thousand, three hundred eighty-one".