145551251461 has 8 divisors (see below), whose sum is σ = 181466495424. Its totient is φ = 113416559520.

The previous prime is 145551251393. The next prime is 145551251473. The reversal of 145551251461 is 164152155541.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-145551251461 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 (145551251861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945137920 + ... + 945138073.

It is an arithmetic number, because the mean of its divisors is an integer number (22683311928).

Almost surely, 2^145551251461 is an apocalyptic number.

145551251461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145551251461 is a deficient number, since it is larger than the sum of its proper divisors (35915243963).

145551251461 is a wasteful number, since it uses less digits than its factorization.

145551251461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890276011.

The product of its digits is 120000, while the sum is 40.

The spelling of 145551251461 in words is "one hundred forty-five billion, five hundred fifty-one million, two hundred fifty-one thousand, four hundred sixty-one".