155240354 has 4 divisors (see below), whose sum is σ = 232860534. Its totient is φ = 77620176.

The previous prime is 155240353. The next prime is 155240357. The reversal of 155240354 is 453042551.

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., 150724729 + 4515625 = 12277^2 + 2125^2 .

It is not an unprimeable number, because it can be changed into a prime (155240353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38810087 + ... + 38810090.

Almost surely, 2^155240354 is an apocalyptic number.

155240354 is a deficient number, since it is larger than the sum of its proper divisors (77620180).

155240354 is an equidigital number, since it uses as much as digits as its factorization.

155240354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77620179.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 155240354 is about 12459.5487077181. The cubic root of 155240354 is about 537.4460493173.

The spelling of 155240354 in words is "one hundred fifty-five million, two hundred forty thousand, three hundred fifty-four".