146121266461 has 4 divisors (see below), whose sum is σ = 146502784512. Its totient is φ = 145739748412.

The previous prime is 146121266383. The next prime is 146121266507. The reversal of 146121266461 is 164662121641.

It is a happy number.

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: 164662121641 = 3673 ⋅44830417.

It is a cyclic number.

It is not a de Polignac number, because 146121266461 - 2²¹ = 146119169309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146131266461) 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, 190758451 + ... + 190759216.

It is an arithmetic number, because the mean of its divisors is an integer number (36625696128).

Almost surely, 2^146121266461 is an apocalyptic number.

It is an amenable number.

146121266461 is a deficient number, since it is larger than the sum of its proper divisors (381518051).

146121266461 is an equidigital number, since it uses as much as digits as its factorization.

146121266461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381518050.

The product of its digits is 82944, while the sum is 40.

The spelling of 146121266461 in words is "one hundred forty-six billion, one hundred twenty-one million, two hundred sixty-six thousand, four hundred sixty-one".