155117119 has 2 divisors, whose sum is σ = 155117120. Its totient is φ = 155117118.

The previous prime is 155117101. The next prime is 155117153. The reversal of 155117119 is 911711551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155117119 - 2¹³ = 155108927 is a prime.

It is a super-2 number, since 2×155117119² = 48122641213720322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155117219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77558559 + 77558560.

It is an arithmetic number, because the mean of its divisors is an integer number (77558560).

Almost surely, 2^155117119 is an apocalyptic number.

155117119 is a deficient number, since it is larger than the sum of its proper divisors (1).

155117119 is an equidigital number, since it uses as much as digits as its factorization.

155117119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1575, while the sum is 31.

The square root of 155117119 is about 12454.6023220334. The cubic root of 155117119 is about 537.3037974356.

It can be divided in two parts, 155117 and 119, that added together give a square (155236 = 394²).

The spelling of 155117119 in words is "one hundred fifty-five million, one hundred seventeen thousand, one hundred nineteen".