378597149 has 4 divisors (see below), whose sum is σ = 432682464. Its totient is φ = 324511836.

The previous prime is 378597143. The next prime is 378597169. The reversal of 378597149 is 941795873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 941795873 = 307 ⋅3067739.

It is a cyclic number.

It is not a de Polignac number, because 378597149 - 2⁴ = 378597133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378597149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378597143) 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, 27042647 + ... + 27042660.

It is an arithmetic number, because the mean of its divisors is an integer number (108170616).

Almost surely, 2^378597149 is an apocalyptic number.

It is an amenable number.

378597149 is a deficient number, since it is larger than the sum of its proper divisors (54085315).

378597149 is an equidigital number, since it uses as much as digits as its factorization.

378597149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54085314.

The product of its digits is 1905120, while the sum is 53.

The square root of 378597149 is about 19457.5730501006. The cubic root of 378597149 is about 723.4232233893.

The spelling of 378597149 in words is "three hundred seventy-eight million, five hundred ninety-seven thousand, one hundred forty-nine".