155032349 has 2 divisors, whose sum is σ = 155032350. Its totient is φ = 155032348.

The previous prime is 155032327. The next prime is 155032373. The reversal of 155032349 is 943230551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85192900 + 69839449 = 9230^2 + 8357^2 .

It is an emirp because it is prime and its reverse (943230551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155032349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155032379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77516174 + 77516175.

It is an arithmetic number, because the mean of its divisors is an integer number (77516175).

Almost surely, 2^155032349 is an apocalyptic number.

It is an amenable number.

155032349 is a deficient number, since it is larger than the sum of its proper divisors (1).

155032349 is an equidigital number, since it uses as much as digits as its factorization.

155032349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 155032349 is about 12451.1986973142. The cubic root of 155032349 is about 537.2059024971.

The spelling of 155032349 in words is "one hundred fifty-five million, thirty-two thousand, three hundred forty-nine".