1238455156007 has 4 divisors (see below), whose sum is σ = 1242831322920. Its totient is φ = 1234078989096.

The previous prime is 1238455155989. The next prime is 1238455156021. The reversal of 1238455156007 is 7006515548321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1238455156007 - 2¹² = 1238455151911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238455156067) 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, 2188083032 + ... + 2188083597.

It is an arithmetic number, because the mean of its divisors is an integer number (310707830730).

Almost surely, 2^{1238455156007} is an apocalyptic number.

1238455156007 is a deficient number, since it is larger than the sum of its proper divisors (4376166913).

1238455156007 is an equidigital number, since it uses as much as digits as its factorization.

1238455156007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376166912.

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 1238455156007 in words is "one trillion, two hundred thirty-eight billion, four hundred fifty-five million, one hundred fifty-six thousand, seven".