1420201575157 has 2 divisors, whose sum is σ = 1420201575158. Its totient is φ = 1420201575156.

The previous prime is 1420201575127. The next prime is 1420201575181. The reversal of 1420201575157 is 7515751020241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057588048881 + 362613526276 = 1028391^2 + 602174^2 .

It is an emirp because it is prime and its reverse (7515751020241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420201575157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420201575127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710100787578 + 710100787579.

It is an arithmetic number, because the mean of its divisors is an integer number (710100787579).

Almost surely, 2^{1420201575157} is an apocalyptic number.

It is an amenable number.

1420201575157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420201575157 is an equidigital number, since it uses as much as digits as its factorization.

1420201575157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98000, while the sum is 40.

Adding to 1420201575157 its reverse (7515751020241), we get a palindrome (8935952595398).

The spelling of 1420201575157 in words is "one trillion, four hundred twenty billion, two hundred one million, five hundred seventy-five thousand, one hundred fifty-seven".