155130235322 has 4 divisors (see below), whose sum is σ = 232695352986. Its totient is φ = 77565117660.

The previous prime is 155130235321. The next prime is 155130235339. The reversal of 155130235322 is 223532031551.

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

It can be written as a sum of positive squares in only one way, i.e., 123271912201 + 31858323121 = 351101^2 + 178489^2 .

It is a super-2 number, since 2×155130235322² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155130235321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38782558829 + ... + 38782558832.

Almost surely, 2^155130235322 is an apocalyptic number.

155130235322 is a deficient number, since it is larger than the sum of its proper divisors (77565117664).

155130235322 is an equidigital number, since it uses as much as digits as its factorization.

155130235322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77565117663.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 155130235322 its reverse (223532031551), we get a palindrome (378662266873).

The spelling of 155130235322 in words is "one hundred fifty-five billion, one hundred thirty million, two hundred thirty-five thousand, three hundred twenty-two".