145215514461 has 8 divisors (see below), whose sum is σ = 193739697184. Its totient is φ = 96750837360.

The previous prime is 145215514453. The next prime is 145215514469. The reversal of 145215514461 is 164415512541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145215514453) and next prime (145215514469).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145215514461 - 2³ = 145215514453 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 (145215514469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14870710 + ... + 14880471.

It is an arithmetic number, because the mean of its divisors is an integer number (24217462148).

Almost surely, 2^145215514461 is an apocalyptic number.

It is an amenable number.

145215514461 is a deficient number, since it is larger than the sum of its proper divisors (48524182723).

145215514461 is a wasteful number, since it uses less digits than its factorization.

145215514461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29752811.

The product of its digits is 96000, while the sum is 39.

The spelling of 145215514461 in words is "one hundred forty-five billion, two hundred fifteen million, five hundred fourteen thousand, four hundred sixty-one".