146190615749 has 4 divisors (see below), whose sum is σ = 146204221836. Its totient is φ = 146177009664.

The previous prime is 146190615743. The next prime is 146190615761. The reversal of 146190615749 is 947516091641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 947516091641 = 7 ⋅135359441663.

It can be written as a sum of positive squares in 2 ways, for example, as 137802803524 + 8387812225 = 371218^2 + 91585^2 .

It is a cyclic number.

It is not a de Polignac number, because 146190615749 - 2²⁸ = 145922180293 is a prime.

It is a super-2 number, since 2×146190615749² (a number of 23 digits) contains 22 as substring.

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 146190615749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146190615743) 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, 6786914 + ... + 6808419.

It is an arithmetic number, because the mean of its divisors is an integer number (36551055459).

Almost surely, 2^146190615749 is an apocalyptic number.

It is an amenable number.

146190615749 is a deficient number, since it is larger than the sum of its proper divisors (13606087).

146190615749 is a wasteful number, since it uses less digits than its factorization.

146190615749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13606086.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 146190615749 in words is "one hundred forty-six billion, one hundred ninety million, six hundred fifteen thousand, seven hundred forty-nine".