1157236226149 has 2 divisors, whose sum is σ = 1157236226150. Its totient is φ = 1157236226148.

The previous prime is 1157236226123. The next prime is 1157236226177. The reversal of 1157236226149 is 9416226327511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1154829636900 + 2406589249 = 1074630^2 + 49057^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157236226149 - 2¹³ = 1157236217957 is a prime.

It is a super-2 number, since 2×1157236226149² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157236226849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578618113074 + 578618113075.

It is an arithmetic number, because the mean of its divisors is an integer number (578618113075).

Almost surely, 2^{1157236226149} is an apocalyptic number.

It is an amenable number.

1157236226149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157236226149 is an equidigital number, since it uses as much as digits as its factorization.

1157236226149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The spelling of 1157236226149 in words is "one trillion, one hundred fifty-seven billion, two hundred thirty-six million, two hundred twenty-six thousand, one hundred forty-nine".