1241667155 has 4 divisors (see below), whose sum is σ = 1490000592. Its totient is φ = 993333720.

The previous prime is 1241667151. The next prime is 1241667169. The reversal of 1241667155 is 5517661421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5517661421 = 12503 ⋅441307.

It is not a de Polignac number, because 1241667155 - 2² = 1241667151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241667151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124166711 + ... + 124166720.

It is an arithmetic number, because the mean of its divisors is an integer number (372500148).

Almost surely, 2^1241667155 is an apocalyptic number.

1241667155 is a deficient number, since it is larger than the sum of its proper divisors (248333437).

1241667155 is an equidigital number, since it uses as much as digits as its factorization.

1241667155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248333436.

The product of its digits is 50400, while the sum is 38.

The square root of 1241667155 is about 35237.2977823215. The cubic root of 1241667155 is about 1074.8183302162.

The spelling of 1241667155 in words is "one billion, two hundred forty-one million, six hundred sixty-seven thousand, one hundred fifty-five".